Cold air boot



July 25, 1933.

5. J. MANCUSO COLD AIR BOOT Filed Dec. 29, 1928 Patented July 2 5 1 933UNITED STATE BENJAMIN J. MANCUSO, F BATAVIA, NEW YOEK COLD AIR BOOTApplication filed; December 29, 1328. Serial No. 329,1'21.

This invention has reference to a hot air furnace, and more particularlyto a novel cold air boot for conducting cold air into the furnacecasing.

The advantages of the invention are as follows:

First, it saves labor and material;

Second, it can be installed in a minimum of time and it occupies but aminimum of.

space; and,

Third, it eliminates the use of elbows,thus providing for less frictionand better circulation.

With the above and other objectsin view, the invention consists in thenovel construction and arrangement of parts hereinafter more fullydescribed and illustrated in the accompanying drawing, wherein:

Figure 1 is a side elevation of a furnace embodying the invention, thefurnace casing being partly in section to show the manner in which thecold air boot is attached thereto; and,

Figure 2 is an end view of the furnace.

Describing the invention in detail, 10 designates a hot air furnace ofthe usual and ordinary construction provided with the customary casing11 which, for purposes of the present invention, has an air inletopening 12 on one side and at a point adjacent the bottom, asillustrated.

Attached to the casing 11, over the inlet 12, is a cold air boot 13forming the subject matter of the present invention. This cold air bootis preferably formed of galvanized iron, though other suitable "materialmay be used, if desired, and is of a box-like configuration, open on theside adjacent the furnace casing, which open side is flanged, asshown'at 14., for attachment to the casing. The boot has a greater crossarea at the top than at the bottom, being approximately at its widestpart, as indicated at 15, and approximately 10" at its base 16, the rearwall 17 of the boot being disposed on a slant, as shown. The top wall 18of the boot is disposed approximately on a degree angle and is providedwith an opening 19 surrounded by anupstanding flange or collar 20, overwhich engages an end of the cold air pipe 21, which has its other endlocated in the floor 22 of the building or dwelling. The cold air whichenters pipe 21 is conducted by way of the cold air boot into the furnacecasing through the opening 12, and circulates around the furnace so asto be heated, the heated air beingsupplied through one or more airductsto the rooms which are to be heated.

The cold air boot fits closely against the r casing, extending upwardlyalong the side of the casing for an appreciable distance, beingapproximately four feet high, and, as will be observed from the drawing,it occupies but little space in comparison with other forms of cold airinlets heretofore employed in connection with hot air furnaces, and itenables the use of shorter and more direct air ducts, such as shown at21, for conducting cold air into the furnace casing, thereby doing awaywith elbows commonly used in other methods, with the result that the airpasses into the furnace casing with less friction and bettercirculation.

Various changes in the form, proportions and minor details of theinvention may be made within the scope of the appended claims.

Having thus described the invention, what 8 is claimed is:

1. A cold air boot for hot air furnaces, comprising a metallic box-likemember of greater cross area at the top than at the bottom, and havin aflanged. open side for attachment to a furnace casing, said boot havingan air inlet at the top disposed in a plane inclined with respect to thehorizontal.

2. A cold air boot for hot air furnaces, comprising a tapering box-likemember presenting greater cross area at the top than at the bottom, andhaving a flanged open side for attachment toa furnace casing, the topwall of said boot being inclined at a 45 degree angle to the horizontal,and having a flanged air inlet opening for engagement with a cold airpipe.

3. A cold air boot for a furnace-enclosing casing having a cold airinlet adjacent its and the vertical cross sectional area diminishesoutward.

4. In a warm air furnace, the combina,

tion of a casing with intake openings for cold air at the lower part, acold air box connection for each cold air intake opening formed of wallson three sides secured to the furnace casing and one side formed by thefurnace casing, and a. pipe joint con"- nection at the top of said coldair box and a cold air pipe connected thereto.

5.In a warm air furnace, the combination of a casing, an aperture in thelower part of the casing, and a cold air box with walls at three sidesand with the casing wall constituting one side thereof and adapted todeliver air to the said aperture and a cold air pipe connected thereto.

BENJAMIN J. MANCUSO.

